Where does “Бангола” come from?

Бангола (Tajik) comes from Persian بنگاله, from Middle Bengali বাঙ্গালা, from Sanskrit वङ्गाल.

Ancestry of “Бангола”, step by step

StepLanguageWordMeaning
1Persianبنگاله—
2Middle Bengaliবাঙ্গালাBengal
3Sanskritवङ्गाल—
Every word from Sanskrit वङ्गाल →Every word from Middle Bengali বাঙ্গালা →Every word from Persian بنگاله →